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DATASHEET // MMAUDIO

MMAudio

Generate synchronized audio for any silent video.

OPEN SOURCE8–12 GB VRAMRuns locally
Actually FreeNo SignupOpen SourceWatermark-FreeHobbyist-OK
Visit MMAudioUPDATED 2026-04-10 · DIRECT LINK
github.com/hkchengrex/MMAudio
MMAudio — preview image

HARDWARE REQUIREMENTS //

Runs locally · Entry GPU (6–8 GB)

8–12 GB VRAM
Min VRAM
8 GB
Rec. VRAM
12 GB
Min RAM
16 GB
Rec. RAM
16 GB
Disk
8 GB
GPU class
Entry GPU
11.8+Apple Silicon ✓GPU RequiredQuant: FP16

Small/medium variants on 8 GB; large on 12 GB.

[ EDITORIAL PICK ]

Why we recommend MMAudio

DERIVED FROM METADATA — NOT SPONSORED
  • Open source

    Source is public — you can audit it, fork it, and you'll never lose access to your workflows if MMAudio the company changes direction.

  • Runs on 8 GB

    Comfortable on a mid-range consumer card — no need to remortgage for an A100.

  • Apple Silicon

    Native Metal / MPS support — runs on M-series Macs without CUDA gymnastics.

  • Beginner-friendly

    You don't need to read a paper before getting your first result — sensible defaults and a quick install.

[ EVIDENCE NOTE ]

Documentation-led datasheet

This page summarizes upstream documentation, release information, and editorially reviewed catalogue fields. It is not presented as a hands-on benchmark. Verify changing requirements at the official project; report stale data through our corrections channel.

VRAM guide →

AT-A-GLANCE SIGNALS //

DERIVED FROM THIS PAGE'S DATA
  • Install difficulty
    Standard

    A standard local install — download, install dependencies, point at your GPU.

  • Hardware comfort
    Mainstream

    Needs 8 GB minimum — RTX 3060 12GB or 4070 territory.

  • Ecosystem
    Open source

    Source is public — auditable and forkable, no vendor lock.

  • Verification
    Ageing

    97 days since the last catalogue refresh — flagged for re-verification.

[ MORE IN THIS NICHE ]

Other audio & speech generation tools we rate

Three picks across different tradeoffs — so you don't end up with three near-clones of MMAudio.

LIGHTEST HARDWARE //

XTTS v2 (Coqui)

Multilingual voice cloning in 6 seconds.

OPEN SOURCE4–6 GB VRAM
BEST FREE OPTION //

RVC (Retrieval-based Voice Conversion)

The voice-changer that took over Discord.

OPEN SOURCE4–8 GB VRAM
TOP QUALITY //

ElevenLabs

The benchmark commercial TTS / voice clone API.

FREEMIUM · $5/MOCLOUD · NO GPU

What is MMAudio?

MMAudio (Sony AI + research collab) generates synchronized sound effects and ambient audio for silent video clips. Drop in a Wan/Hunyuan/SVD output and get matching footsteps, ambient room tone, splashes — automatically aligned to the frame. Best-in-class for the V2A (video-to-audio) niche.

Pros & cons

✓ PROS

  • Solves the silent-video-output problem of every OSS video model
  • Frame-synced output, not just ambient overlay
  • Conditioning on a text prompt for fine control
  • Lightweight — runs on 8 GB VRAM

– CONS

  • Niche tool — only useful as a post-processor for silent video
  • Speech generation is intentionally out of scope

What's actually free?

MIT-licensed; full weights public.

✓ Actually FreeNo SignupOpen SourceWatermark-Free

Alternatives

Stable Audio Open

Open-weight text-to-audio — 47-second sound effects and music.

OPEN SOURCE6–8 GB VRAM
VRAM fit6–8 GB